TREX is a code reviewer developed by Greptile that executes code and identifies errors during the review process. It enhances traditional code inspection methods by integrating code execution with pull request reviews.

Micropython-wasm is an alpha package designed to run Python code in a sandbox using MicroPython and WebAssembly (WASM). It serves as a code execution sandbox plugin for Datasette Agent, named datasette-agent-micropython.

Sandboxing untrusted code is crucial for safely running AI-generated code, customer scripts on multi-tenant platforms, and RL training pipelines. Various technologies, including Docker containers, microVMs, and WebAssembly modules, provide different levels of isolation for executing potentially harmful code.